Corn Variety CV761500 Breeding for Genetic Uniformity
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Solution Overview
Problem
Corn breeding aims to combine desirable traits like higher yield, disease resistance, and uniformity, but existing methods face challenges in developing stable inbred plants with predictable performance due to genetic non-uniformity and the need for extensive selection processes.
Innovation Solution
The development of the corn variety CV761500, which includes a cytoplasmic or nuclear factor for male sterility and genetic modifications such as single locus conversions for traits like herbicide tolerance and disease resistance, along with tissue culture methods for regenerating plants with consistent morphological and physiological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional breeding methods are used to develop inbred plants, then genetic diversity is maintained, but uniformity and predictability of hybrid performance deteriorate
Solution Approach 1:
The patent applies preliminary action by establishing和维护 homozygous inbred lines through repeated self-pollination and selection before hybridization. This preparatory development of genetically uniform parental lines ensures that when crossing occurs, the resulting hybrids exhibit predictable and uniform performance. The inbred lines are developed and maintained as stable genetic resources before being used in hybrid production.
2Reliability
If extensive selection processes are applied to develop superior inbreds, then trait quality improves, but time and resource consumption increases
Solution Approach 1:
The patent employs feedback mechanisms through systematic evaluation and selection of inbred lines based on desired traits. Multiple generations of inbreds are developed and screened, with performance data from each generation informing subsequent selection decisions. This iterative feedback process allows for efficient identification of superior inbred lines that combine multiple desirable characteristics, reducing the overall time required to develop reliable hybrids.
3Stability of the object's composition
If self-pollination is used to create homozygous inbreds, then genetic uniformity improves, but ability to introduce new traits deteriorates
Solution Approach 1:
The patent applies segmentation by separating the breeding process into distinct phases: development of homozygous inbred lines through self-pollination for genetic stability, and subsequent cross-pollination for introducing new traits. This segmentation allows each phase to optimize for its specific function - self-pollination for uniformity and cross-pollination for genetic diversity and trait introduction - without compromising either objective.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV761500. The invention thus relates to the plants, seeds and tissue cultures of the variety CV761500, and to methods for producing a corn plant produced by crossing a corn plant of variety CV761500 with itself or with another corn plant, such as a plant of another variety. The invention further relates to corn seeds and plants produced by crossing plants of variety CV761500 with plants of another variety, such as another inbred line. The invention further relates to the inbred and hybrid genetic complements of plants of variety CV761500.